/*
 * MIT License
 *
 * Copyright (c) 2023 北京凯特伟业科技有限公司
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package com.je.bpm.core.process.validation.validator.impl;

import com.je.bpm.core.model.*;
import com.je.bpm.core.model.process.Process;
import com.je.bpm.core.process.validation.ValidationError;
import com.je.bpm.core.process.validation.validator.Problems;
import com.je.bpm.core.process.validation.validator.ProcessLevelValidator;

import java.util.List;

/**
 *
 */
public class ExecutionListenerValidator extends ProcessLevelValidator {

    @Override
    protected void executeValidation(BpmnModel bpmnModel, Process process, List<ValidationError> errors) {
        validateListeners(process, process, process.getExecutionListeners(), errors);
        for (FlowElement flowElement : process.getFlowElements()) {
            validateListeners(process, flowElement, flowElement.getExecutionListeners(), errors);
        }
    }

    protected void validateListeners(Process process, BaseElement baseElement, List<ActivitiListener> listeners, List<ValidationError> errors) {
        if (listeners != null) {
            for (ActivitiListener listener : listeners) {
                if (listener.getImplementation() == null || listener.getImplementationType() == null) {
                    addError(errors, Problems.EXECUTION_LISTENER_IMPLEMENTATION_MISSING, process, baseElement, "Element 'class' or 'expression' is mandatory on executionListener");
                }
                if (listener.getOnTransaction() != null && ImplementationType.IMPLEMENTATION_TYPE_EXPRESSION.equals(listener.getImplementationType())) {
                    addError(errors, Problems.EXECUTION_LISTENER_INVALID_IMPLEMENTATION_TYPE, process, baseElement, "Expression cannot be used when using 'onTransaction'");
                }
            }
        }
    }
}
